ASTROSAT CZTI

Data Quality Report

Orbit 22412

Creation date: 2024-06-27T18:40:48.794974
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T03_149T01_9000003314_22412cztM0_level2.evt modeM0/AS1T03_149T01_9000003314_22412cztM0_level2_quad_clean.evt
Size (bytes)62,029,4406,497,280
Size59.2 MB 6.2 MB
Events in quadrant A442,21330,456
Events in quadrant B450,31731,264
Events in quadrant C458,77729,410
Events in quadrant D457,07929,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019650
B019680
C019700
D020071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A98110.101937%
B98110.101937%
C98160.611621%
D98010.102041%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 981 981 0 0 0.00% 0.00%
B 981 981 0 0 0.00% 0.00%
C 981 981 0 0 0.00% 0.00%
D 980 980 1 1 0.10% 0.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 1380 50.11 114 111 25.3
A 3 137 1013 35.62 114 111 25.3
A 0 226 986 34.55 114 111 25.3
B 0 244 2869 114.2 114 111 24.2
B 12 111 2704 107.37 114 111 24.2
B 11 111 2403 94.9 114 111 24.2
C 14 238 18619 661.13 112 112 28.0
C 10 22 1962 66.09 112 112 28.0
C 13 61 718 21.65 112 112 28.0
D 1 52 20081 681.85 114 110 29.3
D 13 104 4782 159.51 114 110 29.3
D 2 234 4256 141.55 114 110 29.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter